June 09, 1877

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Features

The South Street Bridge, Philadelphia, PA

Wiggins' Improved Relief and Safety Stop Valve

The Speaking Telephone in New York

Prevalent Manias

Sewage Irrigation on a Small Scale

Safety Valve Tests

A New Injector for Steam Boilers

A New Axe

Improved Machine for Stamping Leather Goods

Practical Mechanism

By Joshua Rose

A New Fumigator

Mershon's Improved Rock Drill

Improved Railroad Joint and Nut Lock

A Snake-Eating Frog

A Beautiful Fern

Decisions of the Courts

New York Academy of Sciences

Recent American and Foreign Patents

New Woodworking and House and Carriage Building Inventions

New Miscellaneous Inventions

New Mechanical and Engineering Inventions

Communications Received

Departments

Departments

New Books and Publications

Business and Personal

Notes and Queries

Index of Inventions

Patents

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Digital Issue ?Read or download this issue’s articles online. *A printed copy of this issue is not included. $7.99

Print + Digital All Access Subscription ?Read or download this issue’s articles online. Plus, subscribe to get Print, Online and Tablet access to the next 12 new issues to be released as well as Online access to archives back to 1845. $99.00

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